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Does Weight Training Make Women Bulky?

“I don’t want to lift weights, it will make me bulk up!” This is a common mindset in women wary of starting a new training routine. Even a quick Google search will reveal that it's an incredibly popular area of interest on bodybuilding blogs and fitness forums. Women enter the gym to improve a healthy inside and outside, and, sometimes, building a bulky exterior doesn’t align with their goals.

The truth is, merely taking the next step in your gym routine won’t automatically result in bigger muscles. And yet, this misconception can unfortunately impede women from entering the weight room. But in fact, the body of research showing resistance training's diverse benefits (particularly in women) continues to grow. So before you shy away from the weight room, here are some science-supported facts about weight lifting for women.

What will happen when you lift weights

One of the most significant benefits of resistance training is an increased fat burn rate – quite the opposite of bulking up! So don't shy away from weight training in lieu of hours on the treadmill, which can actually burn muscle as well as fat. Building and maintaining lean muscle mass will help you burn extra calories, and implementing some weights into any interval training can increase the heart health benefit compared to simple cardio machines like the elliptical.

Now, let's debunk some of the misconceptions we hear about how you might get “bulky.”

First, be assured that women on magazine covers, bodybuilders, and competitive athletes represent a small minority of the general population. These athletes center their entire lifestyle around their sport and professions. They’re often extremely calculated in what they eat, spend several hours in the gym, and optimize their entire lives around training. This also takes years to develop and most certainly doesn’t happen by accident.

Next, when it comes to bulking, nutrition plays more of a role than weight training does. In order to gain weight, you need to eat more calories than you burn – particularly more protein. Most research shows that women require at least 0.8-1.0 grams of protein per pound of body weight each day (far higher than the recommended base daily protein requirement of ~0.4 g/lb) to gain significant lean muscle mass.4,5

Lastly, women’s hormone levels, specifically testosterone, make muscle building particularly difficult. Testosterone is extremely important for muscle protein synthesis and repairing muscle damage from weight training. Since a woman’s body has 10-20 times less testosterone than a man, muscle gain is not as easy as you might think.6

What’s most important to remember

Now, if you’re someone who wants to put on muscle mass, does so with natural ease, or is striving to build a healthy, strong body that is primed to perform, know that bulking up is perfectly normal, healthy, and beautiful! Performance training can do amazing things for your body and mind, and can give you a new found confidence, perspective, and appreciation for what you are capable of. But don’t just take our word for it – see what a professional athlete has to say about her experience:

“For almost my entire life I have struggled with body image issues. Growing up a gymnast, I always had muscle when I really wanted to be skinny. I spent my high school and college years stepping on scales, getting body fat tested, and struggling with disordered eating. I only ran on the treadmill and did the bike and elliptical – cardio was king. I joined my new gym, and the first thing I told my coach was that I didn’t want to get bulky, I only wanted to lose weight. He didn’t say anything, but instead directed me to a video called showing women lifting weights. They were strong and muscular and looked amazing. I decided I would give it a try.

CrossFit was the turning point in my life, showing me that anything is possible. I stopped worrying so much about what my body looked liked. I wanted to be stronger, to be fitter and most of all, healthier. In the short time I have been doing CrossFit, it has helped correct my negative body image and unhealthy relationship with food. It has helped me to feel beautiful in my own skin and proud of the hard work I put in to make my body healthy and strong!

A reminder to women everywhere: You can be whoever you want to be. You can look however you want to look. Set goals. Embrace the journey. And find the greatness inside of you!”

Lifting weights will help increase muscle while shedding fat, which can ultimately lead to a lean, 'toned,' and fit look that many women hope to achieve in the gym. It can also prime you for a healthy, strong body at any age. Looking and feeling strong is definitely not a bad thing! So next time you’re at the gym, swap the stationary bike for a barbell – and maybe even get to your goals faster.